Defending champion Novak Djokovic is shocked at the US Open, one night after Carlos Alcaraz lost

NEW YORK (AP) — Defending champion Novak Djokovic was shocked at the U.S. Open one night after Carlos Alcaraz was, bowing out in the third round with a 6-4, 6-4, 2-6, 6-4 loss to 28th-seeded Alexei Popyrin of Australia on…